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Conde-Valverde M, Quirós-Sánchez A, Diez-Valero J, Mata-Castro N, García-Fernández A, Quam R, Carretero JM, García-González R, Rodríguez L, Sánchez-Andrés Á, Arsuaga JL, Martínez I, Villaverde V. The child who lived: Down syndrome among Neanderthals? SCIENCE ADVANCES 2024; 10:eadn9310. [PMID: 38924400 PMCID: PMC11204207 DOI: 10.1126/sciadv.adn9310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024]
Abstract
Caregiving for disabled individuals among Neanderthals has been known for a long time, and there is a debate about the implications of this behavior. Some authors believe that caregiving took place between individuals able to reciprocate the favor, while others argue that caregiving was produced by a feeling of compassion related to other highly adaptive prosocial behaviors. The study of children with severe pathologies is particularly interesting, as children have a very limited possibility to reciprocate the assistance. We present the case of a Neanderthal child who suffered from a congenital pathology of the inner ear, probably debilitating, and associated with Down syndrome. This child would have required care for at least 6 years, likely necessitating other group members to assist the mother in childcare.
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Affiliation(s)
- Mercedes Conde-Valverde
- Universidad de Alcalá, Departamento de Ciencias de la Vida, Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-Universidad de Alcalá), Alcalá de Henares, Spain
- Department of Anthropology, Binghamton University (SUNY), Binghamton, NY, USA
| | - Amara Quirós-Sánchez
- Universidad de Alcalá, Departamento de Ciencias de la Vida, Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-Universidad de Alcalá), Alcalá de Henares, Spain
| | - Julia Diez-Valero
- Universidad de Alcalá, Departamento de Ciencias de la Vida, Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-Universidad de Alcalá), Alcalá de Henares, Spain
| | - Nieves Mata-Castro
- Universidad de Alcalá, Departamento de Ciencias de la Vida, Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-Universidad de Alcalá), Alcalá de Henares, Spain
- Hospital Universitario HM Puerta del Sur, Móstoles, Spain
- Hospital Universitario HM Montepríncipe, Boadilla del Monte, Spain
- Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Alfredo García-Fernández
- Universidad de Alcalá, Departamento de Ciencias de la Vida, Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-Universidad de Alcalá), Alcalá de Henares, Spain
- Hospital Universitario HM Puerta del Sur, Móstoles, Spain
- Hospital Universitario HM Montepríncipe, Boadilla del Monte, Spain
- Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Rolf Quam
- Universidad de Alcalá, Departamento de Ciencias de la Vida, Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-Universidad de Alcalá), Alcalá de Henares, Spain
- Department of Anthropology, Binghamton University (SUNY), Binghamton, NY, USA
- Centro de Investigación UCM-ISCIII sobre la Evolución y Comportamiento Humanos, Madrid, Spain
- Division of Anthropology, American Museum of Natural History, New York, NY, USA
| | - José Miguel Carretero
- Centro de Investigación UCM-ISCIII sobre la Evolución y Comportamiento Humanos, Madrid, Spain
- Laboratorio de Evolución Humana, Universidad de Burgos, Burgos, Spain
- Unidad Asociada de I+D+i al CSIC Vidrio y Materiales del Patrimonio Cultural (VIMPAC), Universidad de Burgos, Burgos, Spain
| | | | - Laura Rodríguez
- Laboratorio de Evolución Humana, Universidad de Burgos, Burgos, Spain
- Área de Antropología Física. Departamento de Biodiversidad y Gestión Ambiental, Universidad de León, Facultad de Ciencias Biológicas y Ambientales, Campus De Vegazana, León, Spain
| | - Ángeles Sánchez-Andrés
- Universidad de Alcalá, Departamento de Ciencias de la Vida, Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-Universidad de Alcalá), Alcalá de Henares, Spain
| | - Juan Luis Arsuaga
- Centro de Investigación UCM-ISCIII sobre la Evolución y Comportamiento Humanos, Madrid, Spain
- Departamento de Geodinámica, Estratigrafía y Paleontología, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, Madrid, Spain
| | - Ignacio Martínez
- Universidad de Alcalá, Departamento de Ciencias de la Vida, Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-Universidad de Alcalá), Alcalá de Henares, Spain
| | - Valentín Villaverde
- Universitat de València, Departament de Prehistòria, Arqueologia i Història Antiga (PREMEDOC), Av. Blasco Ibañez 28, 46010 València, Spain
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2
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Zhang Y, Urciuoli A, Zanolli C, Kullmer O, Wu X. Three-dimensional geometric morphometric analysis of the bony labyrinth of Xujiayao 6. J Hum Evol 2024; 189:103514. [PMID: 38547737 DOI: 10.1016/j.jhevol.2024.103514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/17/2024] [Accepted: 02/17/2024] [Indexed: 04/08/2024]
Affiliation(s)
- Yameng Zhang
- Joint International Research Laboratory of Environmental and Social Archaeology, Shandong University, Qingdao, 266237, China; Institute of Cultural Heritage, Shandong University, Qingdao, 266237, China
| | - Alessandro Urciuoli
- Universitat Autònoma de Barcelona, Campus de la UAB, 08193 Cerdanyola del Vallès, Barcelona, Spain; Institut Català de Paleontologia Miquel Crusafont (ICP-CERCA), Universitat Autònoma de Barcelona, Edifici ICTA-ICP, c/ Columnes s/n, 08193 Cerdanyola del Vallès, Barcelona, Spain; Division of Palaeoanthropology, Senckenberg Research Institute and Natural History Museum Frankfurt, Senckenberganlage 25, 60325, Frankfurt am Main, Germany; Universidad de Alcalá, Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-UAH), Departamento de Ciencias de la Vida, 28871, Alcalá de Henares, Madrid, Spain.
| | - Clément Zanolli
- Univ. Bordeaux, CNRS, MCC, PACEA, UMR 5199, F-33600, Pessac, France
| | - Ottmar Kullmer
- Division of Palaeoanthropology, Senckenberg Research Institute and Natural History Museum Frankfurt, Senckenberganlage 25, 60325, Frankfurt am Main, Germany; Department of Paleobiology and Environment, Institute of Ecology, Evolution, and Diversity, Goethe University, Max-von-Laue-Str. 13, 60438 Frankfurt, Germany
| | - Xiujie Wu
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China.
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3
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Liu W, Athreya S, Xing S, Wu X. Hominin evolution and diversity: a comparison of earlier-Middle and later-Middle Pleistocene hominin fossil variation in China. Philos Trans R Soc Lond B Biol Sci 2022; 377:20210040. [PMID: 35125004 PMCID: PMC8819364 DOI: 10.1098/rstb.2021.0040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Historical views of Asia as an evolutionary 'backwater' are associated with the idea that Homo erectus experienced long periods of stasis and ultimately went extinct. However, recent discoveries of well-dated Middle Pleistocene hominin fossils in China have considerably challenged these ideas and provide sufficient data to propose a testable model that explains the patterning of variation in Middle Pleistocene China, and why it changed over time. A series of hominin fossil studies comparing earlier-Middle and later-Middle Pleistocene groups confirm that the expressions of certain traits shift around 300 ka. Fossils from the later Middle Pleistocene are more variable with a mix of archaic traits as well as ones that are common in Western Eurasian early Homo sapiens and Neanderthals. The period around 300 ka appears to have been a critical turning point for later-Middle Pleistocene morphological changes in China. It coincides with a phase of climatic instability in the Northern Hemisphere between Marine Isotope Stages 12 and 10 that would have led to changes in gene flow patterning, and regional population survival/extinction. This localized and testable model can be used for future explorations of hominin evolution in later Pleistocene eastern Eurasia. This article is part of the theme issue 'The impact of Chinese palaeontology on evolutionary research'.
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Affiliation(s)
- Wu Liu
- Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, People's Republic of China.,CAS Center for Excellence in Life and Paleoenvironment, Beijing 100044, People's Republic of China
| | - Sheela Athreya
- Liberal Arts Program, Texas A&M University-Qatar, Doha, Qatar
| | - Song Xing
- Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, People's Republic of China.,CAS Center for Excellence in Life and Paleoenvironment, Beijing 100044, People's Republic of China
| | - Xiujie Wu
- Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, People's Republic of China.,CAS Center for Excellence in Life and Paleoenvironment, Beijing 100044, People's Republic of China
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4
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Urciuoli A, Kubat J, Schisanowski L, Schrenk F, Zipfel B, Tawane M, Bam L, Alba DM, Kullmer O. Cochlear morphology of Indonesian Homo erectus from Sangiran. J Hum Evol 2022; 165:103163. [PMID: 35299091 DOI: 10.1016/j.jhevol.2022.103163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 01/31/2022] [Accepted: 01/31/2022] [Indexed: 10/18/2022]
Abstract
Homo erectus s.l. is key for deciphering the origin and subsequent evolution of genus Homo. However, the characterization of this species is hindered by the existence of multiple variants in both mainland and insular Asia, as a result of divergent chronogeographical evolutionary trends, genetic isolation, and interbreeding with other human species. Previous research has shown that cochlear morphology embeds taxonomic and phylogenetic information that may help infer the phylogenetic relationships among hominin species. Here we describe the cochlear morphology of two Indonesian H. erectus individuals (Sangiran 2 and 4), and compare it with a sample of australopiths, Middle to Late Pleistocene humans, and extant humans by means of linear measurements and both principal components and canonical variates analyses performed on shape ratios. Our results indicate that H. erectus displays a mosaic morphology that combines plesiomorphic (australopithlike) features (such as a chimplike round cochlear cross section and low cochlear thickness), with derived characters of later humans (a voluminous and long cochlea, possibly related to hearing abilities)-consistent with the more basal position of H. erectus. Our results also denote substantial variation between the two studied individuals, particularly in the length and radius of the first turn, as well as cross-sectional shape. Given the small size of the available sample, it is not possible to discern whether such differences merely reflect intraspecific variation among roughly coeval H. erectus individuals or whether they might result from greater age differences between them than currently considered. However, our results demonstrate that most characters found in later humans were already present in Indonesian H. erectus, with the exception of Neanderthals, which display an autapomorphic condition relative to other Homo species.
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Affiliation(s)
- Alessandro Urciuoli
- Institut Català de Paleontologia Miquel Crusafont, Universitat Autònoma de Barcelona, Edifici ICTA-ICP, c/Columnes s/n, Campus de la UAB, Cerdanyola del Vallès, Barcelona, 08193, Spain.
| | - Jülide Kubat
- CNRS UMR 8045 Babel, Université de Paris, Faculté de chirurgie dentaire, 1 rue Maurice Arnoux, Montrouge, 92120, France; Division of Palaeoanthropology, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt am Main, Germany
| | - Lisa Schisanowski
- Division of Palaeoanthropology, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt am Main, Germany
| | - Friedemann Schrenk
- Division of Palaeoanthropology, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt am Main, Germany; Department of Paleobiology and Environment, Institute of Ecology, Evolution, and Diversity, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Bernhard Zipfel
- Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg, South Africa
| | - Mirriam Tawane
- Ditsong National Museum of Natural History, Pretoria, South Africa
| | - Lunga Bam
- Department of Radiation Science, South African Nuclear Energy Corporation (Necsa), Pretoria 0001, South Africa
| | - David M Alba
- Institut Català de Paleontologia Miquel Crusafont, Universitat Autònoma de Barcelona, Edifici ICTA-ICP, c/Columnes s/n, Campus de la UAB, Cerdanyola del Vallès, Barcelona, 08193, Spain
| | - Ottmar Kullmer
- Division of Palaeoanthropology, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt am Main, Germany; Department of Paleobiology and Environment, Institute of Ecology, Evolution, and Diversity, Goethe University Frankfurt, Frankfurt am Main, Germany
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5
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Ward DL, Schroeder L, Tinius A, Niccoli S, Voth R, Lees SJ, Silcox M, Viola B, Sanzo P. Ovariectomized Rat Model and Shape Variation in the Bony Labyrinth. Anat Rec (Hoboken) 2022; 305:3283-3296. [PMID: 35103405 DOI: 10.1002/ar.24878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/23/2021] [Accepted: 11/26/2021] [Indexed: 11/10/2022]
Abstract
Postmenopausal osteoporosis is a serious concern in aging individuals, but has not been explored for its potential to alter the shape of the inner ear by way of increased remodelling in the otic capsule. The otic capsule, or bony labyrinth, is thought to experience uniquely limited remodelling after development due to high levels of osteoprotegerin. On this basis, despite the widespread remodelling that accompanies osteoporosis, we hypothesize that both the shape and volume of the semicircular canals will resist such changes. To test this hypothesis, we conducted three-dimensional geometric morphometric shape analysis on microcomputed tomographic data collected on the semicircular canals of an ovariectomized (OVX) rat model. A Procrustes ANOVA found no statistically significant differences in shape between surgery and sham groups, and morphological disparity testing likewise found no differences in shape variation. Univariate testing found no differences in semicircular volume between OVX and control groups. The range of variation in the OVX group, however, is greater than in the sham group but this difference does not reach statistical significance, perhaps because of a combination of small effect size and low sample size. This finding suggests that labyrinthine shape remains a tool for assessing phylogeny and function in the fossil record, but that it is possible that osteoporosis may be contributing to intraspecific shape variation in the bony labyrinth. This effect warrants further exploration at a microstructural level with continued focus on variables related to remodelling. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Devin L Ward
- University of Toronto, Department of Anthropology, Toronto, Ontario
| | - Lauren Schroeder
- University of Toronto Mississauga, Department of Anthropology, Mississauga, Ontario
| | - Alexander Tinius
- University of Toronto, Department of Ecology & Evolutionary Biology, Toronto, Ontario
| | - Sarah Niccoli
- Northern Ontario School of Medicine, Thunder Bay, Ontario
| | - Riley Voth
- Northern Ontario School of Medicine, Thunder Bay, Ontario
| | - Simon J Lees
- Northern Ontario School of Medicine, Thunder Bay, Ontario
| | - Mary Silcox
- University of Toronto Scarborough, Department of Anthropology, Scarborough, Ontario
| | - Bence Viola
- University of Toronto, Department of Anthropology, Toronto, Ontario
| | - Paolo Sanzo
- Lakehead University, Northern Ontario School of Medicine and School of Kinesiology, Thunder Bay, Ontario
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6
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Evolution of cranial capacity revisited: A view from the late Middle Pleistocene cranium from Xujiayao, China. J Hum Evol 2022; 163:103119. [PMID: 35026677 DOI: 10.1016/j.jhevol.2021.103119] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 12/11/2022]
Abstract
The Late Middle Pleistocene hominin fossils from the Xujiayao site in northern China have been closely studied in light of their morphological variability. However, all previous studies have focused on separated cranial fragments. Here, we report the first reconstruction of a fairly complete posterior cranium, Xujiayao 6 (XJY 6), confidently dated to ∼200-160 ka, which facilitated an assessment of its overall cranial size. XJY 6 was reconstructed from three of the original fragments-the PA1486 (No.7/XJY 6a) occipital bone, PA1490 (No.10/XJY 6b) right parietal bone, and PA1498 (No.17/XJY 15) left temporal bone-which originated from the same young adult individual. The XJY 6 endocranial capacity, estimated by measuring endocranial volume, was estimated using multiple regression formulae derived from ectocranial and endocranial measurements on select samples of Pleistocene hominins and recent modern humans. The results indicate that the larger pooled sample of both Pleistocene and recent modern humans was more robust for the endocranial capacity estimate. Based on the pooled sample using the ectocranial and endocranial measurements, we conservatively estimate the XJY 6 endocranial volume to be ∼1700 cm3 with a 95% confidence interval of 1555-1781 cm3. This is close to Xuchang 1, which dates to 125-105 ka and whose endocranial volume is ∼1800 cm3. Thus, XJY 6 provides the earliest evidence of a brain size that falls in the upper range of Neanderthals and modern Homo sapiens. XJY 6, together with Xuchang 1, Homo floresiensis, Homo luzonensis, and Homo naledi, challenge the general pattern that brain size gradually increases over geological time. This study also finds that hominin brain size expansion occurred at different rates across time and space.
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Wu X, Pei S, Cai Y, Tong H, Xing S, Jashashvili T, Carlson KJ, Liu W. Morphological description and evolutionary significance of 300 ka hominin facial bones from Hualongdong, China. J Hum Evol 2021; 161:103052. [PMID: 34601289 DOI: 10.1016/j.jhevol.2021.103052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 07/10/2021] [Accepted: 07/10/2021] [Indexed: 11/28/2022]
Abstract
Late Middle Pleistocene hominins in Africa displaying key modern morphologies by 315 ka are claimed as the earliest Homo sapiens. Evolutionary relationships among East Asian hominins appear complex due to a growing fossil record of late Middle Pleistocene hominins from the region, reflecting mosaic morphologies that contribute to a lack of consensus on when and how the transition to modern humans transpired. Newly discovered 300 ka hominin fossils from Hualongdong, China, provide further evidence to clarify these relationships in the region. In this study, facial morphology of the juvenile partial cranium (HLD 6) is described and qualitatively and quantitatively compared with that of other key Early, Middle, and Late Pleistocene hominins from East Asia, Africa, West Asia, and Europe and with a sample of modern humans. Qualitatively, facial morphology of HLD 6 resembles that of Early and Middle Pleistocene hominins from Zhoukoudian, Nanjing, Dali, and Jinniushan in China, as well as others from Java, Africa, and Europe in some of these features (e.g., supraorbital and malar regions), and Late Pleistocene hominins and modern humans from East Asia, Africa, and Europe in other features (e.g., weak prognathism, flat face and features in nasal and hard plate regions). Comparisons of HLD 6 measurements to group means and multivariate analyses support close affinities of HLD 6 to Late Pleistocene hominins and modern humans. Expression of a mosaic morphological pattern in the HLD 6 facial skeleton further complicates evolutionary interpretations of regional morphological diversity in East Asia. The prevalence of modern features in HLD 6 suggests that the hominin population to which HLD 6 belonged may represent the earliest pre-modern humans in East Asia. Thus, the transition from archaic to modern morphology in East Asian hominins may have occurred at least by 300 ka, which is 80,000 to 100,000 years earlier than previously recognized.
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Affiliation(s)
- Xiujie Wu
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China; Chinese Academy of Sciences Center for Excellence in Life and Paleoenvironment, Beijing, 100044, China
| | - Shuwen Pei
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China; Chinese Academy of Sciences Center for Excellence in Life and Paleoenvironment, Beijing, 100044, China
| | - Yanjun Cai
- Institute of Global Environmental Change, Xi'an Jiaotong University, 710049 Xi'an, China
| | - Haowen Tong
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China; Chinese Academy of Sciences Center for Excellence in Life and Paleoenvironment, Beijing, 100044, China
| | - Song Xing
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China; Chinese Academy of Sciences Center for Excellence in Life and Paleoenvironment, Beijing, 100044, China
| | - Tea Jashashvili
- Department of Integrative Anatomical Sciences, Keck School of Medicine, University of Southern California Los Angeles, CA, 90033, USA; Department of Geology and Paleontology, Georgian National Museum, Tbilisi, 0105, Georgia
| | - Kristian J Carlson
- Department of Integrative Anatomical Sciences, Keck School of Medicine, University of Southern California Los Angeles, CA, 90033, USA; Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg, 2000 South Africa.
| | - Wu Liu
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China; Chinese Academy of Sciences Center for Excellence in Life and Paleoenvironment, Beijing, 100044, China.
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Hershkovitz I, May H, Sarig R, Pokhojaev A, Grimaud-Hervé D, Bruner E, Fornai C, Quam R, Arsuaga JL, Krenn VA, Martinón-Torres M, de Castro JMB, Martín-Francés L, Slon V, Albessard-Ball L, Vialet A, Schüler T, Manzi G, Profico A, Di Vincenzo F, Weber GW, Zaidner Y. A Middle Pleistocene
Homo
from Nesher Ramla, Israel. Science 2021. [DOI: 10.1126/science.abh3169] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Israel Hershkovitz
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- The Shmunis Family Anthropology Institute, the Dan David Center for Human Evolution and Biohistory Research, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Hila May
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- The Shmunis Family Anthropology Institute, the Dan David Center for Human Evolution and Biohistory Research, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Rachel Sarig
- The Shmunis Family Anthropology Institute, the Dan David Center for Human Evolution and Biohistory Research, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Oral Biology, the Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ariel Pokhojaev
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- The Shmunis Family Anthropology Institute, the Dan David Center for Human Evolution and Biohistory Research, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Oral Biology, the Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Dominique Grimaud-Hervé
- UMR7194, HNHP, Département Homme et Environnement, Muséum national d’Histoire naturelle, CNRS, UPVD, Paris, France
| | - Emiliano Bruner
- CENIEH (National Research Center on Human Evolution), Burgos, Spain
| | - Cinzia Fornai
- Institute of Evolutionary Medicine, University of Zurich, Zurich, Switzerland
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
| | - Rolf Quam
- Department of Anthropology, Binghamton University (SUNY), Binghamton, NY, USA
- Centro UCM-ISCIII de Evolución y Comportamiento Humanos, Madrid, Spain
- Division of Anthropology, American Museum of Natural History, New York, NY, USA
| | - Juan Luis Arsuaga
- Centro UCM-ISCIII de Evolución y Comportamiento Humanos, Madrid, Spain
- Departamento de Geodináica, Estratigrafía y Paleontología, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain
| | - Viktoria A. Krenn
- Institute of Evolutionary Medicine, University of Zurich, Zurich, Switzerland
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
| | - Maria Martinón-Torres
- CENIEH (National Research Center on Human Evolution), Burgos, Spain
- Department of Anthropology, University College London, London, UK
| | - José María Bermúdez de Castro
- CENIEH (National Research Center on Human Evolution), Burgos, Spain
- Department of Anthropology, University College London, London, UK
| | - Laura Martín-Francés
- CENIEH (National Research Center on Human Evolution), Burgos, Spain
- Department of Anthropology, University College London, London, UK
| | - Viviane Slon
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- The Shmunis Family Anthropology Institute, the Dan David Center for Human Evolution and Biohistory Research, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Lou Albessard-Ball
- UMR7194, HNHP, Département Homme et Environnement, Muséum national d’Histoire naturelle, CNRS, UPVD, Paris, France
- PalaeoHub, Department of Archaeology, University of York, York, UK
| | - Amélie Vialet
- UMR7194, HNHP, Département Homme et Environnement, Muséum national d’Histoire naturelle, CNRS, UPVD, Paris, France
| | - Tim Schüler
- Thuringian State Office for the Preservation of Historical Monuments and Archaeology Weimar, Germany
| | - Giorgio Manzi
- Department of Environmental Biology, Sapienza University of Rome, Roma, Italy
| | - Antonio Profico
- PalaeoHub, Department of Archaeology, University of York, York, UK
- Department of Environmental Biology, Sapienza University of Rome, Roma, Italy
| | - Fabio Di Vincenzo
- Department of Environmental Biology, Sapienza University of Rome, Roma, Italy
| | - Gerhard W. Weber
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
- Core Facility for Micro-Computed Tomography, University of Vienna, Vienna, Austria
| | - Yossi Zaidner
- Institute of Archaeology, The Hebrew University of Jerusalem, Jerusalem, Israel
- Zinman Institute of Archaeology, University of Haifa, Haifa, Mount Carmel, Israel
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Ward DL, Schroeder L, Pomeroy E, Roy JE, Buck LT, Stock JT, Martin-Gronert M, Ozanne SE, Silcox MT, Viola TB. Early life malnutrition and fluctuating asymmetry in the rat bony labyrinth. Anat Rec (Hoboken) 2021; 304:2645-2660. [PMID: 33586866 DOI: 10.1002/ar.24601] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/18/2021] [Accepted: 01/22/2021] [Indexed: 12/26/2022]
Abstract
Maternal malnutrition during gestation and lactation is known to have adverse effects on offspring. We evaluate the impact of maternal diet on offspring bony labyrinth morphology. The bony labyrinth develops early and is thought to be stable to protect vital sensory organs within. For these reasons, bony labyrinth morphology has been used extensively to assess locomotion, hearing function, and phylogeny in primates and numerous other taxa. While variation related to these parameters has been documented, there is still a component of intraspecific variation that is unexplained. Although the labyrinthine developmental window is small, it may provide the opportunity for developmental instability to produce corresponding shape differences, as measured by fluctuating asymmetry (FA). We hypothesized that (a) offspring with poor maternal diet would exhibit increased FA, but (b) no unilateral shape difference. To test these hypotheses, we used two groups of rats (Rattus norvegicus; Crl:WI[Han] strain), one control group and one group exposed to a isocaloric, protein-restricted maternal diet during gestation and suckling. Individuals were sampled at weaning, sexual maturity, and old age. A Procrustes analysis of variance identified statistically significant FA in all diet-age subgroups. No differences in level of FA were identified among the subgroups, rejecting our first hypothesis. A principal components analysis identified no unilateral shape differences, supporting our second hypothesis. These results indicate that bony labyrinth morphology is remarkably stable and likely protected from a poor maternal diet during development. In light of this result, other factors must be explored to explain intraspecific variation in labyrinthine shape.
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Affiliation(s)
- Devin L Ward
- Department of Anthropology, University of Toronto, Toronto, Ontario, Canada
| | - Lauren Schroeder
- Department of Anthropology, University of Toronto Mississauga, Mississauga, Ontario, Canada
| | - Emma Pomeroy
- Department of Archaeology, University of Cambridge, Cambridge, UK
| | - Jocelyn E Roy
- Department of Anthropology, University of Toronto, Toronto, Ontario, Canada
| | - Laura T Buck
- Department of Archaeology, University of Cambridge, Cambridge, UK
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
| | - Jay T Stock
- Department of Anthropology, Western University, London, Ontario, Canada
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Malgorzata Martin-Gronert
- Metabolic Research Laboratories and MRC Metabolic Diseases Unit, University of Cambridge, Cambridge, UK
| | - Susan E Ozanne
- Metabolic Research Laboratories and MRC Metabolic Diseases Unit, University of Cambridge, Cambridge, UK
| | - Mary T Silcox
- Department of Anthropology, University of Toronto Scarborough, Scarborough, Ontario, Canada
| | - T Bence Viola
- Department of Anthropology, University of Toronto, Toronto, Ontario, Canada
- Institute for Archaeology and Ethnography, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation
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10
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Árnason Ú, Hallström B. The reversal of human phylogeny: Homo left Africa as erectus, came back as sapiens sapiens. Hereditas 2020; 157:51. [PMID: 33341120 PMCID: PMC7749984 DOI: 10.1186/s41065-020-00163-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 11/27/2020] [Indexed: 11/25/2022] Open
Abstract
Background The molecular out of Africa hypothesis, OOAH, has been considered as an established fact amid population geneticists for some 25–30 years despite the early concern with it among phylogeneticists with experience beyond that of Homo. The palaeontological support for the hypothesis is also questionable, a circumstance that in the light of expanding Eurasian palaeontological knowledge has become accentuated through the last decades. Results The direction of evolution in the phylogenetic tree of modern humans (Homo sapiens sapiens, Hss) was established inter alia by applying progressive phylogenetic analysis to an mtDNA sampling that included a Eurasian, Lund, and the African Mbuti, San and Yoruba. The examination identified the African populations as paraphyletic, thereby compromising the OOAH. The finding, which was consistent with the out of Eurasia hypothesis, OOEH, was corroborated by the mtDNA introgression from Hss into Hsnn (Neanderthals) that demonstrated the temporal and physical Eurasian coexistence of the two lineages. The results are consistent with the palaeontologically established presence of H. erectus in Eurasia, a Eurasian divergence between H. sapiens and H. antecessor ≈ 850,000 YBP, an Hs divergence between Hss and Hsn (Neanderthals + Denisovans) ≈ 800,000 YBP, an mtDNA introgression from Hss into Hsnn* ≈ 500,000 YBP and an Eurasian divergence among the ancestors of extant Hss ≈ 250,000 YBP at the exodus of Mbuti/San into Africa. Conclusions The present study showed that Eurasia was not the receiver but the donor in Hss evolution. The findings that Homo left Africa as erectus and returned as sapiens sapiens constitute a change in the understanding of Hs evolution to one that conforms to the extensive Eurasian record of Hs palaeontology and archaeology.
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Affiliation(s)
- Úlfur Árnason
- Department of Brain Surgery, Faculty of Medicine, University of Lund, Lund, Sweden.
| | - Björn Hallström
- Center for Translational Genomics, Faculty of Medicine, University of Lund, Lund, Sweden
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Conde-Valverde M, Martínez I, Quam RM, Bonmatí A, Lorenzo C, Velez AD, Martínez-Calvo C, Arsuaga JL. The cochlea of the Sima de los Huesos hominins (Sierra de Atapuerca, Spain): New insights into cochlear evolution in the genus Homo. J Hum Evol 2019; 136:102641. [PMID: 31569005 DOI: 10.1016/j.jhevol.2019.102641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 07/16/2019] [Accepted: 07/16/2019] [Indexed: 02/05/2023]
Abstract
The cochlea contains taxonomic and phylogenetic information and its morphology is related with hearing abilities among fossil hominins. Data for the genus Homo is presently limited to early Homo and the early Neandertals from Krapina. The present study of the middle Pleistocene hominins from the Sima de los Huesos (SH) provides new evidence on cochlear evolution in the genus Homo. We compared the absolute length, proportional lengths of each turn, number of turns, size and shape of the cross-section of the basal turn, volume, curvature gradient, and thickness of the cochlea between extant Pan troglodytes, extant Homo sapiens, Homo neanderthalensis and the SH hominins. The SH hominins resemble P. troglodytes in the proportionally long basal turn, the small size and round shape of the cross-section of the basal turn, the small cochlear volume and the low cochlear thickness. The SH hominins resemble Neandertals and H. sapiens in their long cochlear length and in the proportionally short third turn. Homo neanderthalensis and H. sapiens share several features, not present in the SH hominins, and that likely represent homoplasies: a larger volume, larger size and oval shape of the cross-section of the basal turn and higher cochlear thickness. Later Neandertals show a derived proportionally shorter apical turn. Changes in cochlear volume in Homo cannot be fully explained by variation in body mass or cochlear length but are more directly related to changes in the cross-sectional area of the basal turn. Based on previous studies of the outer and middle ear in SH hominins, changes in the outer and middle ear preceded changes in the inner ear, and the cochlea and semicircular canals seem to have evolved independently in the Neandertal clade. Finally, the small cochlear volume in the SH hominins suggests a slightly higher upper limit of hearing compared with modern humans.
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Affiliation(s)
- Mercedes Conde-Valverde
- Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-Universidad de Alcalá), Área de Antropología Física, Departamento de Ciencias de la Vida, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain.
| | - Ignacio Martínez
- Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-Universidad de Alcalá), Área de Antropología Física, Departamento de Ciencias de la Vida, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain; Centro Mixto (UCM-ISCIII) de Evolución y Comportamiento Humanos, Av. Monforte de Lemos 5, 28029 Madrid, Spain
| | - Rolf M Quam
- Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-Universidad de Alcalá), Área de Antropología Física, Departamento de Ciencias de la Vida, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain; Centro Mixto (UCM-ISCIII) de Evolución y Comportamiento Humanos, Av. Monforte de Lemos 5, 28029 Madrid, Spain; Department of Anthropology, Binghamton University (SUNY), Binghamton, NY 13902-6000, USA; Division of Anthropology, American Museum of Natural History, Central Park West-79th St., New York, NY 10024, USA
| | - Alejandro Bonmatí
- Centro Mixto (UCM-ISCIII) de Evolución y Comportamiento Humanos, Av. Monforte de Lemos 5, 28029 Madrid, Spain
| | - Carlos Lorenzo
- Àrea de Prehistòria, Departament d'Història i Història de l'Art, Universitat Rovira i Virgili, Av. Catalunya 35, 43002 Tarragona, Spain; Institut Català de Paleoecologia Humana i Evolució Social, Campus Sescelades URV, Zona Educacional 4, 43007 Tarragona, Spain
| | - Alex D Velez
- Department of Anthropology, Binghamton University (SUNY), Binghamton, NY 13902-6000, USA
| | - Carolina Martínez-Calvo
- Cátedra de Otoacústica Evolutiva y Paleoantropología (HM Hospitales-Universidad de Alcalá), Área de Antropología Física, Departamento de Ciencias de la Vida, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
| | - Juan Luis Arsuaga
- Centro Mixto (UCM-ISCIII) de Evolución y Comportamiento Humanos, Av. Monforte de Lemos 5, 28029 Madrid, Spain; Departamento de Geodinámica, Estratigrafía y Paleontología, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
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12
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Late Middle Pleistocene hominin teeth from Tongzi, southern China. J Hum Evol 2019; 130:96-108. [DOI: 10.1016/j.jhevol.2019.03.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 02/28/2019] [Accepted: 03/04/2019] [Indexed: 12/29/2022]
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Archaic human remains from Hualongdong, China, and Middle Pleistocene human continuity and variation. Proc Natl Acad Sci U S A 2019; 116:9820-9824. [PMID: 31036653 DOI: 10.1073/pnas.1902396116] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Middle to Late Pleistocene human evolution in East Asia has remained controversial regarding the extent of morphological continuity through archaic humans and to modern humans. Newly found ∼300,000-y-old human remains from Hualongdong (HLD), China, including a largely complete skull (HLD 6), share East Asian Middle Pleistocene (MPl) human traits of a low vault with a frontal keel (but no parietal sagittal keel or angular torus), a low and wide nasal aperture, a pronounced supraorbital torus (especially medially), a nonlevel nasal floor, and small or absent third molars. It lacks a malar incisure but has a large superior medial pterygoid tubercle. HLD 6 also exhibits a relatively flat superior face, a more vertical mandibular symphysis, a pronounced mental trigone, and simple occlusal morphology, foreshadowing modern human morphology. The HLD human fossils thus variably resemble other later MPl East Asian remains, but add to the overall variation in the sample. Their configurations, with those of other Middle and early Late Pleistocene East Asian remains, support archaic human regional continuity and provide a background to the subsequent archaic-to-modern human transition in the region.
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Xing S, Tafforeau P, O’Hara M, Modesto-Mata M, Martín-Francés L, Martinón-Torres M, Zhang L, Schepartz LA, de Castro JMB, Guatelli-Steinberg D. First systematic assessment of dental growth and development in an archaic hominin (genus, Homo) from East Asia. SCIENCE ADVANCES 2019; 5:eaau0930. [PMID: 30746445 PMCID: PMC6357757 DOI: 10.1126/sciadv.aau0930] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 12/06/2018] [Indexed: 05/28/2023]
Abstract
Several human dental traits typical of modern humans appear to be associated with the prolonged period of development that is a key human attribute. Understanding when, and in which early hominins, these dental traits first appeared is thus of strong interest. Using x-ray multiresolution synchrotron phase-contrast microtomography, we quantify dental growth and development in an archaic Homo juvenile from the Xujiayao site in northern China dating to 161,000-224,000 years or 104,000-125,000 years before present. Despite the archaic morphology of Xujiayao hominins, most aspects of dental development of this juvenile fall within modern human ranges (e.g., prolonged crown formation time and delayed first molar eruption). For its estimated age-at-death (6.5 years), its state of dental development is comparable to that of equivalently aged modern children. These findings suggest that several facets of modern human dental growth and development evolved in East Asia before the appearance of fully modern human morphology.
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Affiliation(s)
- Song Xing
- Key Laboratory of Vertebrate Evolution and Human Origins of the Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China
- CAS Center for Excellence in Life and Paleoenvironment, Beijing 100044, China
| | - Paul Tafforeau
- European Synchrotron Radiation Facility, CS-40220, 38043 Grenoble Cedex 09, France
| | - Mackie O’Hara
- Department of Anthropology, The Ohio State University, Columbus, OH 43210, USA
| | - Mario Modesto-Mata
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Paseo Sierra de Atapuerca 3, 09002 Burgos, Spain
- Equipo Primeros Pobladores de Extremadura, Casa de la Cultura Rodríguez Moñino, Av. Cervantes s/n, 10003 Cáceres, Spain
- Anthropology Department, University College London, 14 Taviton Street, London WC1H 0BW, UK
| | - Laura Martín-Francés
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Paseo Sierra de Atapuerca 3, 09002 Burgos, Spain
- UMR 5189 PACEA Université de Bordeaux, CNRS MCC, Bordeaux, France
| | - María Martinón-Torres
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Paseo Sierra de Atapuerca 3, 09002 Burgos, Spain
- Anthropology Department, University College London, 14 Taviton Street, London WC1H 0BW, UK
| | - Limin Zhang
- Key Laboratory of Vertebrate Evolution and Human Origins of the Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China
| | - Lynne A. Schepartz
- HVIRU, School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa
| | - José María Bermúdez de Castro
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Paseo Sierra de Atapuerca 3, 09002 Burgos, Spain
- Anthropology Department, University College London, 14 Taviton Street, London WC1H 0BW, UK
| | - Debbie Guatelli-Steinberg
- Department of Anthropology, The Ohio State University, Columbus, OH 43210, USA
- Department of Anthropology/Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH 43210, USA
- School of Anthropology and Conservation, University of Kent, Canterbury, Kent CT2 7NR, UK
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15
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Conde-Valverde M, Quam R, Martínez I, Arsuaga JL, Daura J, Sanz M, Zilhão J. The bony labyrinth in the Aroeira 3 Middle Pleistocene cranium. J Hum Evol 2018; 124:105-116. [PMID: 30201119 DOI: 10.1016/j.jhevol.2018.08.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 08/13/2018] [Accepted: 08/13/2018] [Indexed: 01/08/2023]
Abstract
The discovery of a partial cranium at the site of Aroeira (Portugal) dating to 389-436 ka augments the current sample of Middle Pleistocene European crania and makes this specimen penecontemporaneous with the fossils from the geographically close Atapuerca Sima de los Huesos (SH) and Arago sites. A recent study of the cranium documented a unique combination of primitive and derived features. The Aroeira 3 cranium preserves the right temporal bone, including the petrosal portion. Virtual reconstruction of the bony labyrinth from μCT scans provides an opportunity to examine its morphology. A series of standard linear and angular measures of the semicircular canals and cochlea in Aroeira 3 were compared with other fossil hominins and recent humans. Our analysis has revealed the absence of derived Neandertal features in Aroeira 3. In particular, the specimen lacks both the derived canal proportions and the low position of the posterior canal, two of the most diagnostic features of the Neandertal bony labyrinth, and Aroeira 3 is more primitive in these features than the Atapuerca (SH) sample. One potentially derived feature (low shape index of the cochlear basal turn) is shared between Aroeira 3 and the Atapuerca (SH) hominins, but is absent in Neandertals. The results of our study provide new insights into Middle Pleistocene population dynamics close to the origin of the Neandertal clade. In particular, the contrasting inner ear morphology between Aroeira 3 and the Atapuerca (SH) hominins suggests a degree of demographic isolation, despite the close geographic proximity and similar age of these two sites.
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Affiliation(s)
- Mercedes Conde-Valverde
- Grupo de Investigación en Bioacústica Evolutiva y Paleoantropología, Área de Antropología Física, Departamento de Ciencias de la Vida, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain.
| | - Rolf Quam
- Grupo de Investigación en Bioacústica Evolutiva y Paleoantropología, Área de Antropología Física, Departamento de Ciencias de la Vida, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain; Department of Anthropology, Binghamton University (SUNY), Binghamton, NY 13902-6000, USA; Centro Mixto (UCM-ISCIII) de Evolución y Comportamiento Humanos, Av. Monforte de Lemos 5, 28029 Madrid, Spain; Division of Anthropology, American Museum of Natural History, Central Park West-79th St., New York, NY 10024, USA
| | - Ignacio Martínez
- Grupo de Investigación en Bioacústica Evolutiva y Paleoantropología, Área de Antropología Física, Departamento de Ciencias de la Vida, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain; Centro Mixto (UCM-ISCIII) de Evolución y Comportamiento Humanos, Av. Monforte de Lemos 5, 28029 Madrid, Spain
| | - Juan-Luis Arsuaga
- Grupo de Investigación en Bioacústica Evolutiva y Paleoantropología, Área de Antropología Física, Departamento de Ciencias de la Vida, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain; Centro Mixto (UCM-ISCIII) de Evolución y Comportamiento Humanos, Av. Monforte de Lemos 5, 28029 Madrid, Spain; Departamento de Geodinámica, Estratigrafía y Paleontología, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Joan Daura
- Grup de Recerca del Quaternari (GRQ)-SERP, Departament d'Historia i Arqueologia, C/ Montalegre 6-8, 08007 Barcelona, Spain
| | - Montserrat Sanz
- Centro Mixto (UCM-ISCIII) de Evolución y Comportamiento Humanos, Av. Monforte de Lemos 5, 28029 Madrid, Spain; Departamento de Geodinámica, Estratigrafía y Paleontología, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - João Zilhão
- UNIARQ-Centro de Arqueologia da Universidade de Lisboa, Faculdade de Letras, Universidade de Lisboa, Alameda da Universidades, 1600-214 Lisbon, Portugal; Department d'Història i Arqueologia, Universitat de Barcelona, 08007 Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluís Companys 23, 08010 Barcelona, Spain
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17
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Abstract
The cavity system of the inner ear—the so-called bony labyrinth—houses the senses of balance and hearing. This structure is embedded in dense petrous bone, fully formed by birth and generally well preserved in human skeletal remains, thus providing a rich source of morphological information about past populations. Here we show that labyrinthine morphology tracks genetic distances and geography in an isolation-by-distance model with dispersal from Africa. Because petrous bones have become prime targets of ancient DNA recovery, we propose that all destructive studies first acquire high-resolution 3D computed-tomography data prior to any invasive sampling. Such data will constitute an important archive of morphological variation in past and present populations, and will permit individual-based genotype–phenotype comparisons. The dispersal of modern humans from Africa is now well documented with genetic data that track population history, as well as gene flow between populations. Phenetic skeletal data, such as cranial and pelvic morphologies, also exhibit a dispersal-from-Africa signal, which, however, tends to be blurred by the effects of local adaptation and in vivo phenotypic plasticity, and that is often deteriorated by postmortem damage to skeletal remains. These complexities raise the question of which skeletal structures most effectively track neutral population history. The cavity system of the inner ear (the so-called bony labyrinth) is a good candidate structure for such analyses. It is already fully formed by birth, which minimizes postnatal phenotypic plasticity, and it is generally well preserved in archaeological samples. Here we use morphometric data of the bony labyrinth to show that it is a surprisingly good marker of the global dispersal of modern humans from Africa. Labyrinthine morphology tracks genetic distances and geography in accordance with an isolation-by-distance model with dispersal from Africa. Our data further indicate that the neutral-like pattern of variation is compatible with stabilizing selection on labyrinth morphology. Given the increasingly important role of the petrous bone for ancient DNA recovery from archaeological specimens, we encourage researchers to acquire 3D morphological data of the inner ear structures before any invasive sampling. Such data will constitute an important archive of phenotypic variation in present and past populations, and will permit individual-based genotype–phenotype comparisons.
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Xing S, Martinón-Torres M, Bermúdez de Castro JM. The fossil teeth of the Peking Man. Sci Rep 2018; 8:2066. [PMID: 29391445 PMCID: PMC5794973 DOI: 10.1038/s41598-018-20432-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 01/18/2018] [Indexed: 01/06/2023] Open
Abstract
This study provides new original data, including the endostructure of most Zhoukoudian H. erectus teeth preserved to date, since the publication of Black in 1927 and Weidenreich in 1937. The new evidence ratifies the similarities of Zhoukoudian with other East Asian mid-Middle Pleistocene hominins such as Hexian and Yiyuan, and allows defining a dental pattern potentially characteristic of this population commonly referred to as classic H. erectus. Given the possible chronological overlaps of classic H. erectus with other archaic Homo, the characterization of this group becomes a key issue when deciphering the taxonomy and evolutionary scenario of the Middle Pleistocene hominins in East Asia. Internally, the most remarkable feature of Zhoukoudian teeth is the highly crenulated enamel-dentine junction (EDJ) and its imprint on the roof of the pulp cavity. So far, this "dendrite-like" EDJ has been found only in East Asia Middle Pleistocene hominins although a large group of samples were assessed, and it could be useful to dentally define classic H. erectus in China. The crenulated EDJ surface, together with the stout roots and the taurodontism could be a mechanism to withstand high biomechanical demand despite a general dentognathic reduction, particularly of the crowns, in these populations.
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Affiliation(s)
- Song Xing
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044, China.
| | - María Martinón-Torres
- National Research Center on Human Evolution (CENIEH), Paseo de la Sierra de Atapuerca 3, 09002, Burgos, Spain.,University College London (UCL) Anthropology, 14 Taviton Street, London, WC1H 0BW, UK
| | - José María Bermúdez de Castro
- National Research Center on Human Evolution (CENIEH), Paseo de la Sierra de Atapuerca 3, 09002, Burgos, Spain.,University College London (UCL) Anthropology, 14 Taviton Street, London, WC1H 0BW, UK
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Li F, Kuhn SL, Chen F, Wang Y, Southon J, Peng F, Shan M, Wang C, Ge J, Wang X, Yun T, Gao X. The easternmost Middle Paleolithic (Mousterian) from Jinsitai Cave, North China. J Hum Evol 2018; 114:76-84. [DOI: 10.1016/j.jhevol.2017.10.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 10/04/2017] [Accepted: 10/05/2017] [Indexed: 01/05/2023]
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Trinkaus E, Wu XJ. External auditory exostoses in the Xuchang and Xujiayao human remains: Patterns and implications among eastern Eurasian Middle and Late Pleistocene crania. PLoS One 2017; 12:e0189390. [PMID: 29232394 PMCID: PMC5726651 DOI: 10.1371/journal.pone.0189390] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 11/26/2017] [Indexed: 11/30/2022] Open
Abstract
In the context of Middle and Late Pleistocene eastern Eurasian human crania, the external auditory exostoses (EAE) of the late archaic Xuchang 1 and 2 and the Xujiayao 15 early Late Pleistocene human temporal bones are described. Xujiayao 15 has small EAE (Grade 1), Xuchang 1 presents bilateral medium EAE (Grade 2), and Xuchang 2 exhibits bilaterally large EAE (Grade 3), especially on the right side. These cranial remains join the other eastern Eurasian later Pleistocene humans in providing frequencies of 61% (N = 18) and 58% (N = 12) respectively for archaic and early modern human samples. These values are near the upper limits of recent human frequencies, and they imply frequent aquatic exposure among these Pleistocene humans. In addition, the medial extents of the Xuchang 1 and 2 EAE would have impinged on their tympanic membranes, and the large EAE of Xuchang 2 would have resulted in cerumen impaction. Both effects would have produced conductive hearing loss, a serious impairment in a Pleistocene foraging context.
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Affiliation(s)
- Erik Trinkaus
- Department of Anthropology, Washington University, Saint Louis, MO, United States of America
- * E-mail:
| | - Xiu-Jie Wu
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China
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Martinón-Torres M, Wu X, Bermúdez de Castro JM, Xing S, Liu W. Homo sapiens in the Eastern Asian Late Pleistocene. CURRENT ANTHROPOLOGY 2017. [DOI: 10.1086/694449] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kaifu Y. Archaic Hominin Populations in Asia before the Arrival of Modern Humans. CURRENT ANTHROPOLOGY 2017. [DOI: 10.1086/694318] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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23
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Ao H, Liu CR, Roberts AP, Zhang P, Xu X. An updated age for the Xujiayao hominin from the Nihewan Basin, North China: Implications for Middle Pleistocene human evolution in East Asia. J Hum Evol 2017; 106:54-65. [DOI: 10.1016/j.jhevol.2017.01.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 01/23/2017] [Accepted: 01/26/2017] [Indexed: 10/19/2022]
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24
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Li ZY, Wu XJ, Zhou LP, Liu W, Gao X, Nian XM, Trinkaus E. Late Pleistocene archaic human crania from Xuchang, China. Science 2017; 355:969-972. [DOI: 10.1126/science.aal2482] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 02/09/2017] [Indexed: 11/02/2022]
Affiliation(s)
- Zhan-Yang Li
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China
- Henan Provincial Institute of Cultural Relics and Archaeology, Zhengzhou 450000, China
| | - Xiu-Jie Wu
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China
| | - Li-Ping Zhou
- Laboratory for Earth Surface Processes, Department of Geography, Peking University, Beijing 100871, China
| | - Wu Liu
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China
| | - Xing Gao
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao-Mei Nian
- Laboratory for Earth Surface Processes, Department of Geography, Peking University, Beijing 100871, China
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Erik Trinkaus
- Department of Anthropology, Washington University, St. Louis, MO 63130, USA
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XING SONG, GUAN YING, O’HARA MACKIE, CAI HUIYANG, WANG XIAOMIN, GAO XING. Late Pleistocene hominin teeth from Laoya Cave, southern China. ANTHROPOL SCI 2017. [DOI: 10.1537/ase.170802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- SONG XING
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing
| | - YING GUAN
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing
| | - MACKIE O’HARA
- Department of Anthropology, The Ohio State University, Columbus
| | | | - XIAOMIN WANG
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing
| | - XING GAO
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing
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26
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Wu XJ, Bruner E. The endocranial anatomy of maba 1. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2016; 160:633-43. [DOI: 10.1002/ajpa.22974] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 02/01/2016] [Accepted: 02/18/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Xiu-jie Wu
- Key Laboratory of Vertebrate Evolution and Human Origins; Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences; 100044 Beijing China
| | - Emiliano Bruner
- Grupo de Paleobiología, Centro Nacional de Investigación sobre la Evolución Humana; Paseo Sierra de Atapuerca 3 Burgos 09002 Spain
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27
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Uhl A, Reyes-Centeno H, Grigorescu D, Kranioti EF, Harvati K. Inner ear morphology of the cioclovina early modern European calvaria from Romania. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2016; 160:62-70. [PMID: 26806095 DOI: 10.1002/ajpa.22938] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 12/18/2015] [Accepted: 12/20/2015] [Indexed: 11/06/2022]
Abstract
OBJECTIVES The morphology of the human bony labyrinth is thought to preserve a strong phylogenetic signal and to be minimally, if at all, affected by postnatal processes. The form of the semicircular canals is considered a derived feature of Neanderthals and different from the modern human anatomy. Among other hominins, European Middle Pleistocene humans have been found to be most similar to Neanderthals. Early modern humans have been proposed to show a pattern that is distinct, but most similar to that of Holocene people. Here we examine the inner ear structures of the Cioclovina calvaria, one of the earliest reliably dated and relatively complete modern human crania from Europe, in the context of recent and fossil human variation. MATERIALS AND METHODS Bony labyrinths were virtually extracted from CT scans of recent Europeans and Cioclovina. Using univariate and multivariate methods, measurements of the semicircular canals were compared with published measurements of other fossil specimens. RESULTS Our results show that Cioclovina's inner ear morphology falls within the range of modern variation, with affinities to both Late Pleistocene modern humans and recent Europeans. Using discriminant functions, the sex of the Cioclovina specimen is estimated as male. DISCUSSION Results agree with previous work showing that Cioclovina exhibits fully modern cranial morphology.
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Affiliation(s)
- Alexandra Uhl
- Paleoanthropology, Senckenberg Center for Human Evolution and Paleoenvironment, Eberhard Karls Universität Tübingen, Tübingen, D-72070, Germany
| | - Hugo Reyes-Centeno
- Paleoanthropology, Senckenberg Center for Human Evolution and Paleoenvironment, Eberhard Karls Universität Tübingen, Tübingen, D-72070, Germany.,DFG Centre for Advanced Studies 'Words, Bones, Genes, Tools: Tracking Linguistic, Cultural and Biological Trajectories of the Human Past'
| | - Dan Grigorescu
- Department of Paleontology, University of Bucharest, Bucharest, 70111, Romania
| | - Elena F Kranioti
- Edinburgh Unit for Forensic Anthropology, School of History, Classics and Archaeology, The University of Edinburgh, Edinburgh, Scotland, EH8 9AG, UK
| | - Katerina Harvati
- Paleoanthropology, Senckenberg Center for Human Evolution and Paleoenvironment, Eberhard Karls Universität Tübingen, Tübingen, D-72070, Germany.,DFG Centre for Advanced Studies 'Words, Bones, Genes, Tools: Tracking Linguistic, Cultural and Biological Trajectories of the Human Past'
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28
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Curnoe D, Ji X, Liu W, Bao Z, Taçon PSC, Ren L. A Hominin Femur with Archaic Affinities from the Late Pleistocene of Southwest China. PLoS One 2015; 10:e0143332. [PMID: 26678851 PMCID: PMC4683062 DOI: 10.1371/journal.pone.0143332] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 11/03/2015] [Indexed: 12/03/2022] Open
Abstract
The number of Late Pleistocene hominin species and the timing of their extinction are issues receiving renewed attention following genomic evidence for interbreeding between the ancestors of some living humans and archaic taxa. Yet, major gaps in the fossil record and uncertainties surrounding the age of key fossils have meant that these questions remain poorly understood. Here we describe and compare a highly unusual femur from Late Pleistocene sediments at Maludong (Yunnan), Southwest China, recovered along with cranial remains that exhibit a mixture of anatomically modern human and archaic traits. Our studies show that the Maludong femur has affinities to archaic hominins, especially Lower Pleistocene femora. However, the scarcity of later Middle and Late Pleistocene archaic remains in East Asia makes an assessment of systematically relevant character states difficult, warranting caution in assigning the specimen to a species at this time. The Maludong fossil probably samples an archaic population that survived until around 14,000 years ago in the biogeographically complex region of Southwest China.
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Affiliation(s)
- Darren Curnoe
- Palaeontology, Geobiology and Earth Archives Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW, Australia
- * E-mail: (DC); (XJ)
| | - Xueping Ji
- Yunnan Institute of Cultural Relics and Archaeology, Kunming, Yunnan, China
- * E-mail: (DC); (XJ)
| | - Wu Liu
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China
| | - Zhende Bao
- Mengzi Institute of Cultural Relics, Mengzi, Yunnan, China
| | - Paul S. C. Taçon
- Place, Evolution and Rock Art Heritage Unit, School of Humanities, Gold Coast Campus, Griffith University, Queensland, Australia
| | - Liang Ren
- Mengzi Institute of Cultural Relics, Mengzi, Yunnan, China
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Quam R, Lorenzo C, Martínez I, Gracia-Téllez A, Arsuaga JL. The bony labyrinth of the middle Pleistocene Sima de los Huesos hominins (Sierra de Atapuerca, Spain). J Hum Evol 2015; 90:1-15. [PMID: 26767955 DOI: 10.1016/j.jhevol.2015.09.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Revised: 07/18/2015] [Accepted: 09/10/2015] [Indexed: 11/30/2022]
Abstract
We performed 3D virtual reconstructions based on CT scans to study the bony labyrinth morphology in 14 individuals from the large middle Pleistocene hominin sample from the site of the Sima de los Huesos (SH) in the Sierra de Atapuerca in northern Spain. The Atapuerca (SH) hominins represent early members of the Neandertal clade and provide an opportunity to compare the data with the later in time Neandertals, as well as Pleistocene and recent humans more broadly. The Atapuerca (SH) hominins do not differ from the Neandertals in any of the variables related to the absolute and relative sizes and shape of the semicircular canals. Indeed, the entire Neandertal clade seems to be characterized by a derived pattern of canal proportions, including a relatively small posterior canal and a relatively large lateral canal. In contrast, one of the most distinctive features observed in Neandertals, the low placement of the posterior canal (i.e., high sagittal labyrinthine index), is generally not present in the Atapuerca (SH) hominins. This low placement is considered a derived feature in Neandertals and is correlated with a more vertical orientation of the ampullar line (LSCm < APA), posterior surface of the petrous pyramid (LSCm > PPp), and third part of the facial canal (LSCm < FC3). Some variation is present within the Atapuerca (SH) sample, however, with a few individuals approaching the Neandertal condition more closely. In addition, the cochlear shape index in the Atapuerca (SH) hominins is low, indicating a reduction in the height of the cochlea. Although the phylogenetic polarity of this feature is less clear, the low shape index in the Atapuerca (SH) hominins may be a derived feature. Regardless, cochlear height subsequently increased in Neandertals. In contrast to previous suggestions, the expanded data in the present study indicate no difference across the genus Homo in the angle of inclination of the cochlear basal turn (COs < LSCm). Principal components analysis largely confirms these observations. While not fully resolved, the low placement of the posterior canal in Neandertals may be related to some combination of absolutely large brain size, a wide cranial base, and an archaic pattern of brain allometry. This more general explanation would not necessarily follow taxonomic lines, even though this morphology of the bony labyrinth occurs at high frequencies among Neandertals. While a functional interpretation of the relatively small vertical canals in the Neandertal clade remains elusive, the relative proportions of the semicircular canals is one of several derived Neandertal features in the Atapuerca (SH) crania. Examination of additional European middle Pleistocene specimens suggests that the full suite of Neandertal features in the bony labyrinth did not emerge in Europe until perhaps <200 kya.
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Affiliation(s)
- Rolf Quam
- Department of Anthropology, Binghamton University (SUNY), Binghamton, NY 13902-6000, USA; Centro de Investigación (UCM-ISCIII) sobre la Evolución y Comportamiento Humanos, Avda. Monforte de Lemos 5, 28029 Madrid, Spain; Division of Anthropology, American Museum of Natural History, Central Park West at 79th St., New York, NY 10024, USA.
| | - Carlos Lorenzo
- Area de Prehistòria, Facultat de Lletres, Universitat Rovira i Virgili, Avda. Catalunya 35, 43002 Tarragona, Spain; IPHES, Institut Català de Paleoecologia Humana i Evolució Social, Campus Sescelades URV (Edifici W3), 43007, Spain; Centro de Investigación (UCM-ISCIII) sobre la Evolución y Comportamiento Humanos, Avda. Monforte de Lemos 5, 28029 Madrid, Spain
| | - Ignacio Martínez
- Centro de Investigación (UCM-ISCIII) sobre la Evolución y Comportamiento Humanos, Avda. Monforte de Lemos 5, 28029 Madrid, Spain; Área de Antropología Física, Departamento de Ciencias de la Vida, Universidad de Alcalá Campus Universitario, 28871 Alcalá de Henares, Spain
| | - Ana Gracia-Téllez
- Centro de Investigación (UCM-ISCIII) sobre la Evolución y Comportamiento Humanos, Avda. Monforte de Lemos 5, 28029 Madrid, Spain; Área de Paleontología, Departamento de Geología, Geografía y Medio Ambiente, Universidad de Alcalá, Campus Universitario, 28871 Alcalá de Henares, Spain
| | - Juan Luis Arsuaga
- Centro de Investigación (UCM-ISCIII) sobre la Evolución y Comportamiento Humanos, Avda. Monforte de Lemos 5, 28029 Madrid, Spain; Departamento de Paleontología, Universidad Complutense de Madrid, Facultad de Ciencias Geológicas, Ciudad Universitaria s/n, 28040 Madrid, Spain
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30
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Curnoe D, Ji X, Taçon PSC, Yaozheng G. Possible Signatures of Hominin Hybridization from the Early Holocene of Southwest China. Sci Rep 2015. [PMID: 26202835 PMCID: PMC5378881 DOI: 10.1038/srep12408] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
We have previously described hominin remains with numerous archaic traits from two localities (Maludong and Longlin Cave) in Southwest China dating to the Pleistocene-Holocene transition. If correct, this finding has important implications for understanding the late phases of human evolution. Alternative interpretations have suggested these fossils instead fit within the normal range of variation for early modern humans in East Asia. Here we test this proposition, consider the role of size-shape scaling, and more broadly assess the affinities of the Longlin 1 (LL1) cranium by comparing it to modern human and archaic hominin crania. The shape of LL1 is found to be highly unusual, but on balance shows strongest affinities to early modern humans, lacking obvious similarities to early East Asians specifically. We conclude that a scenario of hybridization with archaic hominins best explains the highly unusual morphology of LL1, possibly even occurring as late as the early Holocene.
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Affiliation(s)
- Darren Curnoe
- School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Xueping Ji
- Yunnan Institute of Cultural Relics and Archaeology, Kunming, Yunnan, China
| | - Paul S C Taçon
- Place, Evolution and Rock Art Heritage Unit, School of Humanities, Gold Coast Campus, Griffith University, Queensland, Australia
| | - Ge Yaozheng
- Baise Nationalities Museum, Baise, Guangxi, China
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31
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Xing S, Guatelli-Steinberg D, O'Hara M, Wu X, Liu W, Reid DJ. Perikymata distribution in Homo with special reference to the Xujiayao juvenile. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2015; 157:684-93. [PMID: 26059551 DOI: 10.1002/ajpa.22760] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 04/20/2015] [Indexed: 11/06/2022]
Abstract
OBJECTIVES This study investigates where the Xujiayao juvenile (I(1) and C(1) ) fits into the array of perikymata distribution patterns found within the genus Homo. MATERIALS AND METHODS In addition to the I(1) and the C(1) of the Xujiayao juvenile, this study includes samples of early Homo (H. rudolfensis and H. erectus), Neandertals, early modern humans (Qafzeh), and recent modern humans from Southern Africa, Newcastle (UK), and North America (Inupiaq, AK). Three sets of analyses were undertaken, including a comparison of percentage of perikymata in the cervical half of the crown, repeated measures analysis of the percentage of total perikymata in each decile, and canonical variates analysis using both total perikymata number and the percentage of perikymata in the cervical half of the crown. RESULTS The I(1) and C(1) of early Homo and Neandertals have a lower percentage of perikymata in the cervical half of the crown than modern human samples. Repeated measures analysis reveals clear distinctions in the distribution of perikymata between the modern human and fossil samples. Canonical variates analysis suggests greater differences between modern humans and the fossil samples than within the fossil samples, and classifies the Xujiayao teeth among modern humans. DISCUSSION The present study further clarifies variation of perikymata distribution patterns within the genus Homo. The perikymata distribution of the Xujiayao juvenile tends to be more similar to that of modern humans than to either early Homo or Neandertals.
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Affiliation(s)
- Song Xing
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044, China
| | | | - Mackie O'Hara
- Department of Anthropology, the Ohio State University, Columbus, OH, 43210
| | - Xiujie Wu
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044, China
| | - Wu Liu
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044, China
| | - Donald J Reid
- Department of Anthropology, the George Washington State University, Washington, DC, 20052
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Xing S, Martinón-Torres M, Bermúdez de Castro JM, Wu X, Liu W. Hominin teeth from the early Late Pleistocene site of Xujiayao, Northern China. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2014; 156:224-40. [DOI: 10.1002/ajpa.22641] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 10/06/2014] [Accepted: 10/07/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Song Xing
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences; Beijing 100044 China
| | - María Martinón-Torres
- Centro Nacional de Investigación sobre la Evolución Humana (CENIEH); Burgos 09002 Spain
| | | | - Xiujie Wu
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences; Beijing 100044 China
| | - Wu Liu
- Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences; Beijing 100044 China
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